Sash construction



Y June 11, 1935. w. E. KELLER SASH CONSTRUCTION Filed sept. 1o, 1932Patented June 11, 1935 o f, Illinois el`s'"'of"' various k'ind's,; 'and'is p articularly`- con"- cerned with the wayfinwhichthe members-Which ymalup the frames are'connected together at rwhile'me t he ;c or`n'ers.`Vy y The 4vpurpose of the vinvention is tok provide an improved form offcorner connection which per mitsthe frame members'tobeeasily puttogether ,0r' 'tal;`rfen*apart, produces' ay strong; rigid joint between'them'embera permits "the mitered edges between' the members to-b'edrawn snuglyA 'togeth er,"i`s simple in construction, andl isinexpensive nl embioy: e 1 j foregoing statements; yare indicativeinja',Iv general wayjof the nature of' the invention,

othefrfI 'norispecific'objectsr and advantages of the invention 'willbe` apparent tofthoseskilled' in the I; corne'rj connection.

art upon aA full understanding of Athe improvedv r'Inod'er 'that' the;invention tmay be readilyy understood,. two yslightly different'structural' formsof'l the -same;are'presented herein, but it will ofcourse be appreciated that the invention is susceptible of embodiment inother structurally modified forms coming equally within the scope of theappended claims.

In the accompanying drawing: v

Fig. 1 is a fragmentary front View of a sash equipped with the improvedcorner connection of the invention;

Fig. 2 is a vertical section, taken through the sash on the median planeof the same;

Fig. 3 is a horizontal section, taken on the line 3-3 of Fig. 2;

Fig. 4 is a vertical section, taken on the line 4--4 of Fig. 2;

Fig. 5 is a vertical section, corresponding to Fig. 2, but showing theframe members in separated relation; and

Fig. 6 is a vertical section, corresponding to Fig. 2, showing aslightly modified form of the invention.

The form of the invention which is illustrated in Figs. 1 to 5 inclusivewill first be described. As will be observed in those views, the sashincludes two tubular sheet metal frame members I0 and II which aremitered at their adjoining ends in order to fit together at right anglesto each other. The frame member Il) is provided, within its mitered end,with a correspondingly mitered sheet metal reinforcement I2 of U- shapedcross section, which reinforcement is held securely in the frame memberI0 by soldering or by any other suitable means, with the side flangesopen miteredendgwltli'af 'sheet metal rein'frc -f I3 ofv the'reinforcement positionedfbetween reversely bent side portions III of"the"frlanefinem-` berjat opposit'esidesof the glazing: groove If!" Theframemember III is detachablyfaste the 'frame fmember IfI 'by' an'Ii'shapedconn`ectin member?lidoflhollowfshet metal'fconstr One leg `I`Iof the connecting member'is-` U-"shapedl cross sectionandjpioject'sffrom the ofy the fra-me member III-at 'rightf anglesthereto ment` `2| ,offjll'yshapedfcross Sectio f l Thecentex'' web" 22of" thez` reinforcement ,2 If` ex y n'dsa` little? beyond the* sides2355 of* thesam andl isfbentiat right angles to form an ear 24 whichengages with the ends of the sides 23. The reinforcementl, with the edgewall 25 of the frame member, forms a socket 26 of rectangular crosssection into which the leg Il of the connecting member carried by theframe member I0 will snugly telescope. After the leg I1 ofthe connectingmember has been inserted in the socket 26, a long screw 21 with abeveled head 28 is passed through a countersunk aperture 29 in the edgewal130 of the frame member I at a point in alignment with the center ofthe leg I'I, and is screwed into a. threaded aperture 3| in the centerof the ear 24. When the screw 2T is turned in as far as it will go, itwill drawthe mitered ends of the frame members III and IIr tightlytogether, producing astrong and rigid yet readily separable andinconspicuous cornerijoint between the frame members. It 'will 'ofcourse be appreciated that the same type of joint may be employed at oneor more of the other corners of the frame, whereby to permit thelatterfto be easily taken apart or put together.

In Athe form of the invention which is show in Fig. 6, the apertured ear.32 which forms the bottom of the socket 33 for the reception of the leg34 of the connecting member is provided with a solid block 35 into whichthe fastening screw 36 is adapted to screw. This construction permitsthe reinforcement 31 to be made of very light gauge sheet metal. Iclaim: 1. In metal frame construction, two fram ist members whichtogether form a corner of the frame, and means for establishing a rigidbut readily separable connection therebetween `comprising an elongatedtongue which projects from 4one end of one o i the members at rightangles thereto, an elongated socket in the adjoining end of the othermember for Ythe reception of the tongue, which socket is provided with athreaded aperture in thebottom thereof, and a screw which has lts headseated in the `back of the iirst member and extendslongitudinally of thetongue into the aperture in the bottom of the socket with the screwsupported only at its head whereby to per--V mit sidewise movement ofthe lower threaded end of the screw into registration with the aperture.

2. In metal frame construction, two hollow sheet metal frame memberswhich together form a corner of the frame, and means forestablishing arigid but readily separable connection there- Ybetween comprising ahollow tongue which projectsirom one end oi oneof the members at rightangles thereto, a socket .in the adjoining end of the yother member forthe receptionY of the tongue, which socket is provided with a threadedaperture in the bottom thereof, and a screw which hasitshead seatedVinthe back of the first member and extends longitudinally through the 1tongue .intol the aperture in the bottom of the socket with the screwsupported only at its head ywhere-v by.topermit sidewise movement of thelower threadedend. of the screw intoregistration with i joining end ofthe other member for the reception of tthe tongue, which socket isprovided with a threaded aperture inthe bottom thereof. and a screwwhich has its head seated in the back of the 2,004,727 f H 4 s,

rst memberand extends longitudinally through whereby to permit sidewisemovement of the.

lower threaded end of thescrew into registration with the aperture. Y yI I 4. In metal frame construction. two tubular sheet metal framemembers which are mitered toy form a corner of theframe, andmeans'foeestablishing a rigid but readilyseparable connection therebetweencomprising a hollow tongue which projects from one end of one of themembers at right angles thereto, a socket in the adjoining end of theother member of somewhat greater length than the tongue for thereception of the latter, which .socketis provided with a threadedaperture in the bottom thereof, and a. screw which has its head seatedin the back of the nrst member iiush with the latter and extendslongitudinally through the tongue into the aperture in the bottom of thesocket with the screw supported l only at its head whereby topermitsidewise move.y ment of the lower threaded end of the screw lintoregistration with the aperture.L

. 5. In metal frame construction, two'tubular sheet metal frame memberswhich are mitered to form a corner of the'frame, and .means forestablishing a rigid but readily separable .connection therebetweencomprising a hollow tongue of channel cross-sectionwhich projectsfromone member for the reception of the tongue, a block s Y o end of oneof the members at right angles thereto, a socket in the adjoining end ofthe other which is secured to the socket at the ybottom l thereof and isprovided with a threaded aperture, and av screwwhich has its head seatedin the back of the first frame member, andfextends longi-` tudinallythrough the tongue into the aperture in the block with the screwsupported only at its,

